Introduced in 2006 as part of the Treehouse Revolution, the Treehouse die is a unique six-sided die included in every stash of Treehouse pyramids. The TIP-SWAP-DIG-HOP-AIM-WILD die is instrumental in the Treehouse game, as well as other games designed to utilize the Treehouse set, like Martian Coasters. The die comes in two colors: a black die with white lettering and a white die with black lettering. Originally a white die came in the Xeno stash, and black came in the Rainbow stash, but all Treehouse sets now contain black dice. White ones still can be bought from the Looney Labs website.